Allison Chadwick, PA-C
NPI 1689048019 · Physician Assistant · Santa Cruz, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allison Chadwick, PA-C is a Physician Assistant provider in Santa Cruz, CA (NPI 1689048019).
Provider details
- NPI number
- 1689048019
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 52991 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
578 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 151 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 122 | $83 |
| Automated Urinalysis Test81003 | 72 | $2 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 59 | $151 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 48 | $101 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19), Influenza Virus Types a and B, and Respiratory Syncytial Virus |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 45 | 44 |
| Cephalexin | 42 | 42 |
| Mupirocin | 24 | 24 |
| Doxycycline Monohydrate | 19 | 19 |
| Prednisone | 16 | 16 |
| Azithromycin | 14 | 13 |
| Cefdinir | 14 | 14 |
| Triamcinolone Acetonide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-11-23
- Last updated
- 2019-12-04
Frequently asked questions
- What is Allison Chadwick's NPI number?
- Allison Chadwick's National Provider Identifier (NPI) is 1689048019, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Chadwick's specialty?
- Allison Chadwick is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Allison Chadwick located?
- Allison Chadwick's practice location on file with NPPES is 2025 Soquel Ave, Santa Cruz, CA 95062-1323.
- What is Allison Chadwick's phone number?
- The practice phone number listed in the NPPES registry for Allison Chadwick is (831) 458-5537.
- Does Allison Chadwick accept Medicare?
- Allison Chadwick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allison Chadwick's NPI active?
- Yes — Allison Chadwick's NPI (1689048019) is active in the NPPES registry as of the last update on 2019-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.